AbstractThe purpose of this document is to provide the user with a “tuning guide” for the Red Hat* Enterprise Linux* Edition version 5 (RHEL5) operating system, to allow the best possible performance from the Intel® EP80579 integrated processor. This tuning guide contains a set of instructions and a description of how best to configure the RHEL5 OS. It pays particular attention to default processes running on the OS.It is assumed the reader is familiar with Intel® EP80579 integrated processor and in particular, the Intel® EP80579 software for IP telephony applications on Intel® QuickAssist Technology that is used as an example in this paper.